Their tiramisu comes in a big block and the sponge fingers are well saturated in coffee so it's really moist. There's a sufficient amount of alcohol and mascarpone to keep me happy as well.
Actually, as I was quite full from the pizza, my initial plan was to get the tiramisu to enjoy later at home but the staff explained that they don't do takeaways for any of their three desserts. So we ended up having it at Bottega itself with a cup of black coffee. It was a satisfying end to our meal.